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Multiple Galactic Sources with Emission Above 56 TeV Detected by HAWC

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arxiv 1909.08609 v2 pith:3YLR724X submitted 2019-09-18 astro-ph.HE

Multiple Galactic Sources with Emission Above 56 TeV Detected by HAWC

HAWC Collaboration: A.U. Abeysekara , A. Albert , R. Alfaro , J.R. Angeles Camacho , J.C. Arteaga-Vel\'azquez , K.P. Arunbabu , D. Avila Rojas , H.A. Ayala Solares
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V. Baghmanyan E. Belmont-Moreno S.Y. BenZvi C. Brisbois K.S. Caballero-Mora T. Capistr\'an A. Carrami\~nana S. Casanova U. Cotti J. Cotzomi S. Couti\~no de Le\'on E. De la Fuente C. de Le\'on S. Dichiara B.L. Dingus M.A. DuVernois J.C. D\'iaz-V\'elez R.W. Ellsworth K. Engel C. Espinoza H. Fleischhack N. Fraija A. Galv\'an-G\'amez D. Garcia J.A. Garc\'ia-Gonz\'alez F. Garfias M.M. Gonz\'alez J.A. Goodman J.P. Harding S. Hernandez J. Hinton B. Hona D. Huang F. Hueyotl-Zahuantitla P. H\"untemeyer A. Iriarte A. Jardin-Blicq V. Joshi S. Kaufmann D. Kieda A. Lara W.H. Lee H. Le\'on Vargas J.T. Linnemann A.L. Longinotti G. Luis-Raya J. Lundeen R. L\'opez-Coto K. Malone S.S. Marinelli O. Martinez I. Martinez-Castellanos J. Mart\'inez-Castro H. Mart\'inez-Huerta J.A. Matthews P. Miranda-Romagnoli J.A. Morales-Soto E. Moreno M. Mostaf\'a A. Nayerhoda L. Nellen M. Newbold M.U. Nisa R. Noriega-Papaqui A. Peisker E.G. P\'erez-P\'erez J. Pretz Z. Ren C.D. Rho C. Rivi\`ere D. Rosa-Gonz\'alez M. Rosenberg E. Ruiz-Velasco F. Salesa Greus A. Sandoval M. Schneider H. Schoorlemmer G. Sinnis A.J. Smith R.W. Springer P. Surajbali E. Tabachnick M. Tanner O. Tibolla K. Tollefson I. Torres R. Torres-Escobedo L. Villase\~nor T. Weisgarber J. Wood T. Yapici H. Zhang H. Zhou
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keywords sourcesabovecatalogemittinggalacticgamma-rayhawchighest-energy
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We present the first catalog of gamma-ray sources emitting above 56 and 100 TeV with data from the High Altitude Water Cherenkov (HAWC) Observatory, a wide field-of-view observatory capable of detecting gamma rays up to a few hundred TeV. Nine sources are observed above 56 TeV, all of which are likely Galactic in origin. Three sources continue emitting past 100 TeV, making this the highest-energy gamma-ray source catalog to date. We report the integral flux of each of these objects. We also report spectra for three highest-energy sources and discuss the possibility that they are PeVatrons.

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